理学 网络体系结构 释 wide area network 广域网 连接不同地区局域网或城域网计算机通信的远程网。其所覆盖的范围从几十公里到几千公里，它能连接多个地区、城市和国家，或横跨几个洲并能提供远距离通信，形成国际性的远程网络。广域网是互联网的核心部分，但并不等同于互联网。
网络与数据通信 协议体系与组成结构 释文 wide area network, WAN 广域网
- extragalactic background light
- extragalactic background radiation
- extragalactic binary
- extragalactic Cepheid
- extragalactic compact radio sources
- extragalactic diffuse X-ray emission
- Extragalactic diffuse γ-ray background(DGRB)
- extragalactic galaxy detection
- extragalactic HⅡ region
- extragalactic infrared astronomy
- extragalactic infrared background
- extragalactic infrared source
- extragalactic matter
- extragalactic medium
- extragalactic nebula
- extragalactic nova
- extragalactic object
- extragalactic planetary nebula
- extragalactic radio astronomy
- extragalactic radio background
- extragalactic radio radiation
- extragalactic radio source
- extragalactic source
- extragalactic space
- extragalactic supernova